• Title/Summary/Keyword: monocyte

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Association of the -2518 A/G Polymorphism of MCP-1 with Breast Cancer in Punjab, North-West India

  • Sambyal, Vasudha;Guleria, Kamlesh;Kapahi, Ruhi;Manjari, Mridu;Sudan, Meena;Uppal, Manjit Singh;Singh, Neeti Rajan
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.16
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    • pp.7243-7248
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    • 2015
  • Background: Monocyte chemoattractant protein-1 (MCP-1) is a major chemokine thought to be responsible for monocyte and T-lymphocyte recruitment in acute inflammatory conditions and recruitment of macrophages in tumors. It is also implicated in cardiovascular disease, rheumatoid arthritis and chronic obstructive pulmonary disease. The aim of the present study was to investigate the correlation between MCP-1 -2518 A/G polymorphism and breast cancer risk in patients from Amritsar city of Punjab state in North-West India. Materials and Methods: We screened DNA samples of 200 sporadic breast cancer patients and 200 age and gender matched unrelated healthy individuals for MCP-1 -2518 A/G polymorphism using the PCR-RFLP method. Results: A significantly increased frequency of the GG genotype was observed in patients as compared to controls. Individuals carrying the MCP1 -2518GG genotype had a two fold risk for breast cancer (OR=2.06, 95%CI, 1.06-3.98; p=0.03). Genetic models analysis revealed a significant association between MCP-1 -2518 A/G polymorphism and cancer risk in homozygous co-dominant (OR=2.06, 95%CI, 1.06-3.98; p=0.03) and recessive (OR=1.97, 95%CI, 1.05-3.70; p=0.03) models. Conclusions: We conclude that the GG genotype of the MCP-1-2518 A/G polymorphism is associated with increased risk to breast cancer in Punjab, North-West India.

The Soluble Form of the Cellular Prion Protein Enhances Phagocytic Activity and Cytokine Production by Human Monocytes Via Activation of ERK and $NF-{\kappa}B$

  • Jeon, Jae-Won;Park, Bum-Chan;Jung, Joon-Goo;Jang, Young-Soon;Shin, Eui-Cheol;Park, Young Woo
    • IMMUNE NETWORK
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    • v.13 no.4
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    • pp.148-156
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    • 2013
  • The $PrP^C$ is expressed in many types of immune cells including monocytes and macrophages, however, its function in immune regulation remains to be elucidated. In the present study, we examined a role for $PrP^C$ in regulation of monocyte function. Specifically, the effect of a soluble form of $PrP^C$ was studied in human monocytes. A recombinant fusion protein of soluble human $PrP^C$ fused with the Fc portion of human IgG1 (designated as soluble $PrP^C$-Fc) bound to the cell surface of monocytes, induced differentiation to macrophage-like cells, and enhanced adherence and phagocytic activity. In addition, soluble $PrP^C$-Fc stimulated monocytes to produce pro-inflammatory cytokines such as $TNF-{\alpha}$, $IL-1{\beta}$, and IL-6. Both ERK and $NF-{\kappa}B$ signaling pathways were activated in soluble $PrP^C$-treated monocytes, and inhibitors of either pathway abrogated monocyte adherence and cytokine production. Taken together, we conclude that soluble $PrP^C$-Fc enhanced adherence, phagocytosis, and cytokine production of monocytes via activation of the ERK and $NF-{\kappa}B$ signaling pathways.

Study of Innate Immunity Suppression of Yeonsan Ogye listed on Dong-eui-bo-gam (동의보감에 수재된 오계(烏鷄)의 선천면역반응 억제에 관한 연구)

  • Choi, Hak Joo;Sim, Boo Yong;Joo, In Hwan;Yoo, Sun Kyun;Kim, Dong Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.30 no.4
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    • pp.236-241
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    • 2016
  • The aim of the study is to evaluate immune-enhancing effects of Yeonsan Ogye. Various extract of Yeonsan Ogye (200 and 400 mg/kg/daily) was treated orally to Balb/c mice for 1 week, before acute inflammation was induced by LPS. After cytokine (IFN-γ, TNF-α, IL-6, and IL-1β) and immune cells (white blood cell, neutrophil, lymphocyte, and monocyte) level by serum and blood were counted. As a result, Oral treatment of Yeonsan Ogye extract to the Balb/c mice were significantly decreased cytokine level in serum, in comparison with control group. in addition, production of white blood cell and monocyte in blood was decreased and granulocyte was increased respectively, in comparison with control. Our results demonstrated that Yeonsan Ogye extracts seem to have significant immune-enhancing. Thus, Yeonsan ogye may be developed as a raw material for new health food and medicine to ease the symptoms related with inflammatory and immune.

Association between serum fatty acid composition and innate immune markers in healthy adults

  • Cho, Eunyu;Park, Yongsoon
    • Nutrition Research and Practice
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    • v.10 no.2
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    • pp.182-187
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    • 2016
  • BACKGROUND/OBJECTIVES: Supplementation with n-3 polyunsaturated fatty acids (PUFAs) has been shown to generally decrease levels of innate immune markers and inflammatory cytokines, but the specific associations between blood levels of PUFAs and those of innate immune markers have not been investigated. Thus, the present study was conducted to test the hypothesis that innate immune markers as well as cytokines are negatively associated with n-3 PUFAs but positively associated with n-6 PUFAs in healthy adults. MATERIALS/METHODS: One hundred sixty-five healthy Korean adults aged 25-70 years old were included in this cross-sectional study. RESULTS: Serum levels of n-3 PUFAs, such as 18:3n3, 20:5n3, 22:5n3, and 22:6n3 were negatively correlated with eosinophil and basophil counts and $TNF-{\alpha}$, $IFN-{\gamma}$, IL-4, and IL-10 levels. Multivariate analysis also showed that serum levels of n-3 PUFAs were negatively associated with monocyte, eosinophil, and basophil counts and $TNF-{\alpha}$, $IFN-{\gamma}$, IL-4, and IL-12 levels. Additionally, the ratio of 20:4n6 to 20:5n3 was positively correlated with eosinophil counts and associated with $TNF-{\alpha}$, $IFN-{\gamma}$, and IL-4 levels. However, NK cell activity was not associated with serum fatty acid composition. CONCLUSIONS: Innate immune markers such as eosinophil, monocyte, and basophil counts were inversely associated with serum levels of n-3 PUFAs, but were positively associated with the 20:4n6/20:5n3 ratio in this population.

Effect of Coptidis Rhizoma Extract on Cytokine Production of Mouse Macrophages (황연(黃連) 추출물이 대식세포의 면역단백질 생성에 미치는 영향)

  • Kim, Bok-Kee;Han, Hyo-Sang;Lee, Young-Jong
    • Herbal Formula Science
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    • v.21 no.2
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    • pp.81-89
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    • 2013
  • Objectives : The purpose of this study is to observe the effect of Coptidis Rhizoma (CCE-extract of C. chinensis Rhizome) in induction of immune protein on mouse macrophages. Methods : To analyze cytokines interleukin(IL)-$1{\alpha}$, IL-3, IL-9, IL-12p40, IL-13, IL-17, Monocyte Chemoattractant Protein(MCP)-1 induced by macrophages, mouse macrophages were incubated with CCE and was measured. Results : IL-$1{\alpha}$ measurement, CCE showed significant inhibition only at concentration level of 200 ${\mu}g/mL$. IL-3, MCP-1 measurement, CCE showed significant inhibition only at concentration level of 100, 200 ${\mu}g/mL$. IL-9 measurement, CCE showed significant inhibition only at concentration level of 50 ${\mu}g/mL$. IL-13 measurement, CCE showed significant inhibition only at concentration level of 50, 100, 200 ${\mu}g/mL$. The IL-12p40, IL-17 levels indicated no changes at 25, 50, 100, 200 ${\mu}g/mL$ on mouse macrophages. Conclusions : CCE did not significantly increased inflammatory cytokines IL-$1{\alpha}$, IL-3, IL-9, IL-12p40, IL-13, IL-17, Monocyte Chemoattractant Protein(MCP)-1 on mouse macrophages. It was verified CCE does not trigger cytokine related hypersensitivity reaction of organism or exacerbation of acute/chronic inflammatory disease.

Peptidoglycan Up-Regulates CXCL8 Expression via Multiple Pathways in Monocytes/Macrophages

  • Lee, Chung Won;Chung, Sung Woon;Bae, Mi Ju;Song, Seunghwan;Kim, Sang-pil;Kim, Koanhoi
    • Biomolecules & Therapeutics
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    • v.23 no.6
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    • pp.564-570
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    • 2015
  • Peptidoglycan (PG), the gram positive bacterial pathogen-associated molecular patterns (PAMP), is detected in a high proportion in macrophage-rich atheromatous regions, and expression of chemokine CXCL8, which triggers monocyte arrest on early atherosclerotic endothelium, is elevated in monocytes/ macrophages in human atherosclerotic lesion. The aim of this study was to investigate whether PG induced CXCL8 expression in the cell type and to determine cellular signaling pathways involved in that process. Exposure of THP-1 cell, human monocyte/macrophage cell line, to PG not only enhanced CXCL8 release but also profoundly induced il8 gene transcription. PG-induced release of CXCL8 and induction of il8 gene transcription were blocked by OxPAPC, an inhibitor of TLR-2/4 and TLR4, but not by polymyxin B, an inhibitor of LPS. PG-mediated CXCL8 release was significantly attenuated by inhibitors of PI3K-Akt-mTOR pathways. PKC inhibitors, MAPK inhibitors, and ROS quenchers also significantly attenuated expression of CXCL8. The present study proposes that PG contributes to inflammatory reaction and progression of atherosclerosis by inducing CXCL8 expression in monocytes/macrophages, and that TLR-2, PI3K-Akt-mTOR, PKC, ROS, and MAPK are actively involved in the process.

Enhancing effect of Canavalia gladiata DC semen on the hematopoietic expansion and function of stem cells (도두(刀豆)의 조혈증진 작용에 관한 연구)

  • Kim, Seung-Hyung;Kim, Kun-Hoae;Chi, Gyeong-Yup;Cho, In-Sik;Kim, Han-Young;Lee, Young-Cheol
    • The Korea Journal of Herbology
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    • v.27 no.4
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    • pp.9-16
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    • 2012
  • Objective : Canavalia gladiata DC semen (CGS) have been used to improve hematopoietic activity. In the current study, we investigated whether CGS regulate hemato-potentiating function using hematopoietic stem cells (HSCs) as a testing system. Methods : HSCs isolated from femur in mice with leukopenia and thrombocytopenia induced induced by CTX. Then, Real-time PCR was performed to measure the mRNA expression and hematopoietic related gene (EPO, IL-3, SCF, c-kit, GM-CSF), the phoaphorylation of GATA-1 and STAT-5a/b were observed by ELISA method, and the number of granulocyte erythrocyte monocyte macrophage colony-forming units (CFU-GEMM) and erythroid burst forming units (BFU-E), semisolid clonogenic assay was performed. Result : When HSCs were treated with CGS, the expression of hematopoietic related genes (EPO, IL-3, SCF, c-kit, and GM-CSF) were significantly increased at the levels of mRNA as well as production in HSCs. Additionally, CGS enhanced phosphorylation of STAT-1 and signal transducer and activator of transcription-5a/b (STAT-5a/b) in HSCs. Furthermore, CGS significantly enhanced the growth rate of granulocyte erythrocyte monocyte macrophage colony-forming units (CFU-GEMM) and erythroid burst forming units (BFU-E) in vitro. Conclusion : These result suggest that CGS has hematopoietic enhancement via hematopoietic cytokine-mediated GATA-1/STAT-5a/b pathway.

Lack of Prognostic Value of Blood Parameters in Patients Receiving Adjuvant Radiotherapy for Breast Cancer

  • Cihan, Yasemin Benderli;Arslan, Alaettin;Cetindag, Mehmet Faik;Mutlu, Hasan
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.10
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    • pp.4225-4231
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    • 2014
  • Aim: To determine prognostic value of blood parameters on overall and progression-free survival in cases received adjuvant radiotherapy and chemotherapy with diagnosis of stage I-III breast cancer. Materials and Methods: We retrospectively reviewed files of 350 patients with non-metastatic breast cancer who were treated in the Radiation Oncology Department of Kayseri Teaching Hospital between 2005 and 2010. Pretreatment white blood cell (WBC), neutrophil, monocyte, basophil and eosinophil counts, and the neutrophil/lymphocyte ratio (NLR) and platelet lymphocyte ratio (PLR) were recorded. The relationship between clinicopathological findings and blood parameters was assessed. Results: Overall, 344 women and 6 men were recruited. Median age was $55.3{\pm}0.3$ years (range: 22-86). Of the cases, 243 (61.4%) received radiotherapy while 329 (94.3%), received chemotherapy and 215 (61.4%) received hormone therapy. Mean overall survival (OS) and progression-free survival (PFS) was 84.4 and 78.8 months, respectively. During follow-up, 48 patients died due to either disease-related or non-related causes. Local recurrence was detected in 14 cases, while distant metastasis was noted in 45 cases. In univariate analysis, age, pathology, perinodal invasion were significantly associated with overall survival, whereas gender, stage and hormone therapy were significantly associated with progression-free survival. In multivariate analysis, histopathological diagnosis (OR: 0.3; 95%: 0.1-0.7; p=0.006) and perinodal invasion (OR: 0.1; 95% CI: 0.1-1.3; p=0.026) were significantly associated with overall survival, whereas tumor stage (OR: 2.1; 95% CI: 0.0-0.7; p=0.014) and hormone therapy (OR: 2.1; 95%: 1.2-3.8; p=0.010) were significantly associated with progression-free survival. Conclusions: It was found that serum inflammatory markers including WBC, neutrophil, lymphocyte and monocyte counts, and NLR and PLR had no effect on prognosis in patients with breast cancer who underwent surgery and received adjuvant radiotherapy and chemotherapy.

Manassantin A and B Isolated from Saururus chinensis Inhibit $TNF-{\alpha}-Induced$ Cell Adhesion Molecule Expression of Human Umbilical Vein Endothelial Cells

  • Kwon Oh Eok;Lee Hyun Sun;Lee Seung Woong;Chung Mi Yeon;Bae Ki Hwan;Rho Mun-Chual;Kim Young-kook
    • Archives of Pharmacal Research
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    • v.28 no.1
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    • pp.55-60
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    • 2005
  • Leukocyte adhesion to the vascular endothelium is a critical initiating step in inflammation and atherosclerosis. We have herein studied the effect of manassantin A (1) and S (2), dineolignans, on interaction of THP-1 monocytic cells and human umbilical vein endothelial cells (HUVEC) and expression of intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and E-selectin in HUVEC. When HUVEC were pretreated with 1 and 2 followed by stimulation with $TNF-{\alpha}$, adhesion of THP-1 cells to HUVEC decreased in dose-dependent manner with $IC_{50}$ values of 5 ng/mL and 7 ng/mL, respectively, without cytotoxicity. Also, 1 and 2 inhibited $TNF-{\alpha}-induceda$ up-regulation of ICAM-1, VCAM-1 and E-selectin. The present findings suggest that 1 and 2 prevent monocyte adhesion to HUVEC through the inhibition of ICAM-1, VCAM-1 and E-selectin expression stimulated by $TNF-\alpha$, and may imply their usefulness for the prevention of atherosclerosis relevant to endothelial activation.

Dendritic Cell (DC) Vaccine in Mouse Lung Cancer Minimal Residual Model: Comparison of Monocyte-derived DC vs. Hematopoietic Stem Cell Derived-DC

  • Baek, Soyoung;Lee, Seog Jae;Kim, Myoung Joo;Lee, Hyunah
    • IMMUNE NETWORK
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    • v.12 no.6
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    • pp.269-276
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    • 2012
  • The anti-tumor effect of monocyte-derived DC (MoDC) vaccine was studied in lung cancer model with feasible but weak Ag-specific immune response and incomplete blocking of tumor growth. To overcome this limitation, the hematopoietic stem cell-derived DC (SDC) was cultured and the anti-tumor effect of MoDC & SDC was compared in mouse lung cancer minimal residual model (MRD). Therapeutic DCs were cultured from either $CD34^+$ hematopoietic stem cells with GM-CSF, SCF and IL-4 for 14 days (SDC) or monocytes with GM-CSF and IL-4 for 7 days (MoDC). DCs were injected twice by one week interval into the peritoneum of mice that are inoculated with Lewis Lung Carcinoma cells (LLC) one day before the DC injection. Anti-tumor responses and the immune modulation were observed 3 weeks after the final DC injection. CD11c expression, IL-12 and TGF-${\beta}$ secretion were higher in SDC but CCR7 expression, IFN-${\gamma}$ and IL-10 secretion were higher in MoDC. The proportion of $CD11c^+CD8a^+$ cells was similar in both DC cultures. Although both DC reduced the tumor burden, histological anti-tumor effect and the frequencies of IFN-${\gamma}$ secreting $CD8^+$ T cells were higher in SDC treated group than in MoDC. Conclusively, although both MoDC and SDC can induce the anti-tumor immunity, SDC may be better module as anti-tumor vaccine than MoDC in mouse lung cancer.